Lintel construction



1929- I J. F. MAKOWSKI Y 533% LINTE-L CONSTRUCTION Original Filed April ll. 1928 y igoR ATTORN EY Patented Dec. 17, 1929 JOHN F. MAKOWSKI, F OAKLAND, GALIFOBNIA,. ASSEIGNOR TO FIREIERCOF WALL COMPANY, OF RENO, NEVADA, A COQFORATION' LINTEL oonsrnuorron Original application filed April 11, 1928, Serial No. 265x082. Divided and. this application filed. November This invention relates to wall construction and particularly to the construction of lintels across the doorways in walls which are erected from blocks or tiles, being a divisional application of my copending application on lintel construction, Serial No. 269,082, filed April 11th, 1928.

In walls of this general character in which the lintels are Vmerely formed by a rowor course of the tile or blocks of the wall, there is a decided tendency for cracks to develop, leading from the corners of the doors to the tops of the wall in opposite directions and following the staggered vertical joints or separation lines of the tiles of the difi'erent courses. This, of course, is an obvious objectionable feature and weakness in the wall.

The principal object of my invention therefore is to provide a lintel construction of such a nature that such cracking tendency will be eliminated, and the lintel forms a solid unitary member extending across the doorway to points some distance to the sides of the same.

A further object of the invention is to ara range for the construction of the lintel so that it is carried out in connection with the erection of the wall in a simple and easy manner.

These objects I accomplish by means 0 such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawings similar characters of reference indicate corresponding parts in the I several views Fig. 1 is a perspective view of a wall in the process of erection, showing the erected wall carried to a height at which the lintel is to be then formed, and also shown in connection with a special form used in erecting the wall and constructing the lintel.

Fig. 2 is a fragmentary perspective view of the wall showing the first step in forming the lintel.

Fig. 3 is a similar view illustrating the next step in the lintel construction.

Fig. 4 is a fragmentary front elevation of the wall partly broken out and showing the completed lintel.

In my wall and lintel construction I em- Serial no. 317,211.

ploy a wall form substantially as shown in my co-pending application for patent, Serial No. 269,081, filed April 11th, 1928', and which consists essentially of horizontally spaced uprights 1 faced on one side with horizontal and vertically spaced slats'2'. i

The door buck 3 is placed directly against the form and temporarily secured in place by suitable means, and the tile 4 for the Wall as erected abut against the form and against theopposite sides ofthe' buck and are placed as usual in horizontal courses with the vertical edges ofthe tile in staggered order. Adjacent the top of the buck and for a dis tance' thereabove to a height not less than the height of a tile the relatively narrow slats 2 are replaced by a single wide slat 5' asshown.

I Inlaying the tile the'complete courses from the buck toward the opposite ends of the wall stop short adjacent and preferably a slight distance below the top of the buck, and the tile of the next superimposed course termithen laid for the time being or until the lint'el'isconstructed. f p 4 j The" tileof the type preferably used are suchas are shown in said aforementioned copending application, and have horizontal openings 6 extendingfrom endtoendthereof. In the ends of the exposed openings of the separated tile of th'e upper course", P may then if desired.placereinforcing' bars 7, which extend from said tile across the buck as shown in Figg2. A board 8 is thentemporarily secured to the top of the back on the outside thereof, this board extending across the buck and overlapping" the ends of the separated tile of the upper course somewhat as shownin Fig. 3. .The buck being the same width asthetile, the {board will abut snugly against the sides of the tile as will be evident. upper edge of the board is disposed so as to be level with the upper edges of' the tile of the upper course.

An enclosed trough is thus formed over the buck between boards 5 and 8, the top of the buck and the ends ofthe separated tile of the upper course. This trough is then completely The irate somexdistance from the sides of the buck. as'sh'ownin Fig. 1. No more. tile are we ion filled with a plastic cementitious material 9, which is preferably the same nature as the tile, and whose composition is as set forth in my co-pending application for patent, Serial No. 307,549, filed September 18th, 1927, or as in my copending application Serial No. 307,550 filed September 18th, 1927.

Such material when poured into the trough of course envelops the bar 7 and also projects some distance into the tile openings 6.

The outer board 8 being level with the top of the tile the material when poured may be troweled ofl flush with the tile, so as to then offer no interference with the laying of subsequent courses of tile above the lintel, and which will be horizontally alined with the courses already built as shown in Fig. 4. It will thus be seen that when the material 9 is set it forms a solid unitary beam across the buck which is anchored in the end tile of the upper course and eliminates the possibility of cracks developing at the corners of the buck, since the lintel has no vertical joints at such corners.

The height of the back board 5 is preferably such as to take care of any variation in the heights of doors which may be used within reasonable limits.

From the foregoing description it will be readily seen that I have produced such a device as substantially fulfills the objects of the invention as set forth herein.

IVhile this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described my invention what I claim as new and useful and desire to secure by Letters Patent is:

1. In wall construction, separated wall sections forming an opening therebetween, a door buck in the opening and terminating adjacent the top thereof, members to form the sides of a trough of which the top of the buck is the bottom removably mounted in connection with the buck, whereby to provide a form for the pouring of cementitious material to form a lintel over the buck.

2. In wall construction, separated wall sections forming an opening therebetween, a door buck in the opening and terminating adjacent the top thereof, a row of hollow tile laid on the wall on both sides of the opening and terminating in spaced relation thereto, and a lintel of initially plastic cementitious material poured on top of the buck and top of the wall to said hollow tile and partly into the same.

3. A structure as in claim 2, with reinforcing bars initially laid in the adjacent endmost tile and extending across the opening.

4. A structure as in claim 2, with means removably associated with the buck and tile to provide a trough for the initial support of the lintel material when poured.

5. In wall construction, tile to form spaced wall sections, a removable form against which the sections are erected, a door buck between said sections extending to the top thereof and abutted against the form, said form including a relatively wide horizontal board disposed on edge adjacent the top of the plane of the buck and extending both above and below said plane whereby to form, with the top of the buck, the back and bottom of a trough between the wall sections and over the buck irrespective of variations in the height of the buck, and a board forming the front of the trough detachably secured to the buck and overlapping the adjacent ends of the wall sections.

6. A structure as in claim 5, with a lintel of initially plastic cementitious material poured in said trough and extending over the top of the wall sections, and additional wall elements laid on said wall sections and terminating in spaced relation to the adjacent ends of said sections to limit the length of the lintel.

In testimony whereof I aflix my signature.

JOHN F. MAKOWSKI. 

